53718443040 has 192 divisors, whose sum is σ = 177317683200. Its totient is φ = 13644094464.

The previous prime is 53718443039. The next prime is 53718443057. The reversal of 53718443040 is 4034481735.

It is a super-2 number, since 2×53718443040² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53718443040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2628381 + ... + 2648739.

It is an arithmetic number, because the mean of its divisors is an integer number (923529600).

Almost surely, 2^53718443040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53718443040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88658841600).

53718443040 is an abundant number, since it is smaller than the sum of its proper divisors (123599240160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53718443040 is a wasteful number, since it uses less digits than its factorization.

53718443040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20639 (or 20631 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 53718443040 in words is "fifty-three billion, seven hundred eighteen million, four hundred forty-three thousand, forty".